Ögren, E. (1990). Evaluation of Chlorophyll Fluorescence as a Probe for Drought Stress in Willow Leaves.
استشهاد بنمط شيكاغوÖgren, Erling. Evaluation of Chlorophyll Fluorescence As a Probe for Drought Stress in Willow Leaves. 1990.
MLA استشهادÖgren, Erling. Evaluation of Chlorophyll Fluorescence As a Probe for Drought Stress in Willow Leaves. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.